R: Random Generation of MVN Breeding Values and Phylogenetic...

rbv {MCMCglmm} | R Documentation

## Random Generation of MVN Breeding Values and Phylogenetic Effects

### Description

Random Generation of MVN Breeding Values and Phylogenetic Effects

### Usage

    rbv(pedigree, G, nodes="ALL", scale=TRUE, ggroups=NULL, gmeans=NULL)

### Arguments

`pedigree` | ordered pedigree with 3 columns id, dam and sire or a `phylo` object.
`G` | (co)variance matrix
`nodes` | effects for pedigree/phylogeny nodes to be returned. The default, `nodes="ALL"` returns effects for all individuals in a pedigree or nodes in a phylogeny (including ancestral nodes). For phylogenies `nodes="TIPS"` returns effects for the tips only, and for pedigrees a vector of ids can be passed to `nodes` specifying the subset of individuals for which animal effects are returned.
`scale` | logical: should a phylogeny (needs to be ultrametric) be scaled to unit length (distance from root to tip)?
`ggroups` | optional; vector of genetic groups
`gmeans` | matrix of mean breeding value for genetic groups (rows) by traits (columns)

### Value

matrix of breeding values/phylogenetic effects

### Author(s)

Jarrod Hadfield j.hadfield@ed.ac.uk

### Examples

    data(bird.families)
    bv<-rbv(bird.families, diag(2))

[Package MCMCglmm version 2.30 Index]